DE69830505T2 - Methode zur herstellung von elektretartikelen und filter mit erhöhter ölnebelresistenz - Google Patents
Methode zur herstellung von elektretartikelen und filter mit erhöhter ölnebelresistenz Download PDFInfo
- Publication number
- DE69830505T2 DE69830505T2 DE69830505T DE69830505T DE69830505T2 DE 69830505 T2 DE69830505 T2 DE 69830505T2 DE 69830505 T DE69830505 T DE 69830505T DE 69830505 T DE69830505 T DE 69830505T DE 69830505 T2 DE69830505 T2 DE 69830505T2
- Authority
- DE
- Germany
- Prior art keywords
- electret
- filter
- polymer
- dop
- quenched
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 68
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 229920000642 polymer Polymers 0.000 claims description 52
- 239000000654 additive Substances 0.000 claims description 51
- 239000000463 material Substances 0.000 claims description 45
- 239000000835 fiber Substances 0.000 claims description 40
- 238000010791 quenching Methods 0.000 claims description 40
- 230000000171 quenching effect Effects 0.000 claims description 36
- 239000004745 nonwoven fabric Substances 0.000 claims description 34
- 230000000996 additive effect Effects 0.000 claims description 32
- 238000000137 annealing Methods 0.000 claims description 29
- 238000001228 spectrum Methods 0.000 claims description 29
- 238000010998 test method Methods 0.000 claims description 29
- -1 polypropylene Polymers 0.000 claims description 28
- 239000004743 Polypropylene Substances 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 26
- 229920001155 polypropylene Polymers 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 230000008569 process Effects 0.000 claims description 22
- 239000000443 aerosol Substances 0.000 claims description 20
- 238000002844 melting Methods 0.000 claims description 16
- 230000008018 melting Effects 0.000 claims description 16
- 238000007600 charging Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 8
- 239000012768 molten material Substances 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 238000003851 corona treatment Methods 0.000 claims description 2
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 2
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920000306 polymethylpentene Polymers 0.000 claims description 2
- 239000011116 polymethylpentene Substances 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 229920005992 thermoplastic resin Polymers 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 238000005496 tempering Methods 0.000 claims 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 79
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 79
- 238000011068 loading method Methods 0.000 description 23
- 238000012360 testing method Methods 0.000 description 23
- 238000002834 transmittance Methods 0.000 description 21
- 230000002708 enhancing effect Effects 0.000 description 20
- 239000004744 fabric Substances 0.000 description 16
- 229920001410 Microfiber Polymers 0.000 description 15
- 239000003658 microfiber Substances 0.000 description 15
- 230000010287 polarization Effects 0.000 description 14
- 239000007788 liquid Substances 0.000 description 11
- 238000012545 processing Methods 0.000 description 11
- 239000007921 spray Substances 0.000 description 11
- 238000001914 filtration Methods 0.000 description 9
- 230000005684 electric field Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000013067 intermediate product Substances 0.000 description 7
- 239000008263 liquid aerosol Substances 0.000 description 7
- 239000000155 melt Substances 0.000 description 7
- 239000003595 mist Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 230000029058 respiratory gaseous exchange Effects 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000002596 correlated effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000011045 prefiltration Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- IZXIZTKNFFYFOF-UHFFFAOYSA-N 2-Oxazolidone Chemical class O=C1NCCO1 IZXIZTKNFFYFOF-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 238000000518 rheometry Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 239000011236 particulate material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000007786 electrostatic charging Methods 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- AQYSYJUIMQTRMV-UHFFFAOYSA-N hypofluorous acid Chemical class FO AQYSYJUIMQTRMV-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 230000028161 membrane depolarization Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical class CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 150000004885 piperazines Chemical class 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000000646 scanning calorimetry Methods 0.000 description 1
- 229920006126 semicrystalline polymer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000002076 thermal analysis method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
- D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43825—Composite fibres
- D04H1/43828—Composite fibres sheath-core
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/48—Processes of making filters
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Filtering Materials (AREA)
- Electrostatic Separation (AREA)
- Artificial Filaments (AREA)
- Nonwoven Fabrics (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US941864 | 1997-10-01 | ||
| US08/941,864 US6068799A (en) | 1997-10-01 | 1997-10-01 | Method of making electret articles and filters with increased oily mist resistance |
| PCT/US1998/001457 WO1999016533A1 (en) | 1997-10-01 | 1998-02-02 | Method of making electret articles and filters with increased oily mist resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69830505D1 DE69830505D1 (de) | 2005-07-14 |
| DE69830505T2 true DE69830505T2 (de) | 2006-03-23 |
Family
ID=25477186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69830505T Expired - Fee Related DE69830505T2 (de) | 1997-10-01 | 1998-02-02 | Methode zur herstellung von elektretartikelen und filter mit erhöhter ölnebelresistenz |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US6068799A (cs) |
| EP (1) | EP1019174B1 (cs) |
| JP (1) | JP2003522300A (cs) |
| KR (1) | KR100519882B1 (cs) |
| CN (1) | CN1154530C (cs) |
| AU (1) | AU739986B2 (cs) |
| BR (1) | BR9812593A (cs) |
| CA (1) | CA2304284A1 (cs) |
| CZ (1) | CZ295232B6 (cs) |
| DE (1) | DE69830505T2 (cs) |
| ES (1) | ES2242272T3 (cs) |
| PL (1) | PL339655A1 (cs) |
| RU (1) | RU2246979C2 (cs) |
| WO (1) | WO1999016533A1 (cs) |
Families Citing this family (47)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6213122B1 (en) | 1997-10-01 | 2001-04-10 | 3M Innovative Properties Company | Electret fibers and filter webs having a low level of extractable hydrocarbons |
| US6732733B1 (en) | 1997-10-03 | 2004-05-11 | 3M Innovative Properties Company | Half-mask respirator with head harness assembly |
| US6062221A (en) | 1997-10-03 | 2000-05-16 | 3M Innovative Properties Company | Drop-down face mask assembly |
| US6432175B1 (en) | 1998-07-02 | 2002-08-13 | 3M Innovative Properties Company | Fluorinated electret |
| US6375886B1 (en) * | 1999-10-08 | 2002-04-23 | 3M Innovative Properties Company | Method and apparatus for making a nonwoven fibrous electret web from free-fiber and polar liquid |
| US6406657B1 (en) * | 1999-10-08 | 2002-06-18 | 3M Innovative Properties Company | Method and apparatus for making a fibrous electret web using a wetting liquid and an aqueous polar liquid |
| US7115150B2 (en) * | 2000-09-05 | 2006-10-03 | Donaldson Company, Inc. | Mist filtration arrangement utilizing fine fiber layer in contact with media having a pleated construction and floor filter method |
| US6716274B2 (en) | 2000-09-05 | 2004-04-06 | Donaldson Company, Inc. | Air filter assembly for filtering an air stream to remove particulate matter entrained in the stream |
| US6743273B2 (en) | 2000-09-05 | 2004-06-01 | Donaldson Company, Inc. | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures |
| US20020092423A1 (en) * | 2000-09-05 | 2002-07-18 | Gillingham Gary R. | Methods for filtering air for a gas turbine system |
| US6746517B2 (en) * | 2000-09-05 | 2004-06-08 | Donaldson Company, Inc. | Filter structure with two or more layers of fine fiber having extended useful service life |
| US6740142B2 (en) * | 2000-09-05 | 2004-05-25 | Donaldson Company, Inc. | Industrial bag house elements |
| US7270693B2 (en) * | 2000-09-05 | 2007-09-18 | Donaldson Company, Inc. | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures |
| US6673136B2 (en) * | 2000-09-05 | 2004-01-06 | Donaldson Company, Inc. | Air filtration arrangements having fluted media constructions and methods |
| US6800117B2 (en) * | 2000-09-05 | 2004-10-05 | Donaldson Company, Inc. | Filtration arrangement utilizing pleated construction and method |
| RU2300543C2 (ru) * | 2001-05-31 | 2007-06-10 | Дональдсон Компани, Инк. | Составы тонкого волокна, способы их получения, способ изготовления тонковолокнистого материала |
| JP2004057976A (ja) * | 2002-07-30 | 2004-02-26 | Toyobo Co Ltd | 生分解性を有するエレクトレット濾材およびその製造方法 |
| CN100488402C (zh) * | 2004-04-23 | 2009-05-20 | 松下电工株式会社 | 带有静电雾化器的加热送风装置 |
| RU2301909C2 (ru) * | 2005-05-14 | 2007-06-27 | Общество с ограниченной ответственностью "Айна" | Способ изготовления воздухоочистителя и устройство для осуществления способа |
| US7503326B2 (en) * | 2005-12-22 | 2009-03-17 | 3M Innovative Properties Company | Filtering face mask with a unidirectional valve having a stiff unbiased flexible flap |
| US20090000624A1 (en) * | 2007-06-28 | 2009-01-01 | 3M Innovative Properties Company | Respirator having a harness and methods of making and fitting the same |
| PT2222908E (pt) * | 2007-12-06 | 2013-03-28 | 3M Innovative Properties Co | Tecidos de eletretos com aditivos que intensificam as cargas |
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| RU2411312C1 (ru) * | 2009-06-16 | 2011-02-10 | Учреждение Российской академии наук Институт химии растворов РАН (ИХР РАН) | Способ получения комплексных полипропиленовых нитей |
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| CN103781956B (zh) * | 2011-06-30 | 2016-09-28 | 3M创新有限公司 | 非织造驻极体纤维网及其制备方法 |
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| EA037948B1 (ru) | 2016-01-07 | 2021-06-10 | Дональдсон Компани, Инк. | Фильтрующая среда, фильтрующий элемент и его применение |
| CN113996120A (zh) | 2016-03-17 | 2022-02-01 | 欧洲过滤袋公司 | 具有回收纺织材料和/或棉短绒的真空吸尘器过滤袋 |
| KR102558116B1 (ko) | 2016-09-16 | 2023-07-21 | 쓰리엠 이노베이티브 프로퍼티즈 캄파니 | 호기 밸브 및 이를 포함하는 호흡기 |
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| WO2020261150A1 (en) * | 2019-06-28 | 2020-12-30 | 3M Innovative Properties Company | Core-sheath fibers, nonwoven fibrous web, and respirator including the same |
| CN110772889B (zh) * | 2019-10-28 | 2021-09-24 | 南通大学 | 一种针刺/熔喷/纺粘复合过滤材料及其制备方法 |
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| CN113417076B (zh) * | 2021-06-23 | 2022-07-22 | 海南欣龙无纺股份有限公司 | 一种艾草整理熔喷布及其制备方法和应用 |
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-
1997
- 1997-10-01 US US08/941,864 patent/US6068799A/en not_active Expired - Fee Related
-
1998
- 1998-02-02 WO PCT/US1998/001457 patent/WO1999016533A1/en not_active Ceased
- 1998-02-02 CA CA002304284A patent/CA2304284A1/en not_active Abandoned
- 1998-02-02 CZ CZ20001180A patent/CZ295232B6/cs not_active IP Right Cessation
- 1998-02-02 RU RU2000108471/04A patent/RU2246979C2/ru not_active IP Right Cessation
- 1998-02-02 JP JP2000513659A patent/JP2003522300A/ja not_active Withdrawn
- 1998-02-02 DE DE69830505T patent/DE69830505T2/de not_active Expired - Fee Related
- 1998-02-02 EP EP98906004A patent/EP1019174B1/en not_active Expired - Lifetime
- 1998-02-02 AU AU61348/98A patent/AU739986B2/en not_active Ceased
- 1998-02-02 BR BR9812593-1A patent/BR9812593A/pt not_active IP Right Cessation
- 1998-02-02 PL PL98339655A patent/PL339655A1/xx unknown
- 1998-02-02 CN CNB988097370A patent/CN1154530C/zh not_active Expired - Fee Related
- 1998-02-02 KR KR10-2000-7003518A patent/KR100519882B1/ko not_active Expired - Fee Related
- 1998-02-02 ES ES98906004T patent/ES2242272T3/es not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CZ295232B6 (cs) | 2005-06-15 |
| WO1999016533A1 (en) | 1999-04-08 |
| EP1019174B1 (en) | 2005-06-08 |
| ES2242272T3 (es) | 2005-11-01 |
| KR20010024376A (ko) | 2001-03-26 |
| KR100519882B1 (ko) | 2005-10-11 |
| AU739986B2 (en) | 2001-10-25 |
| RU2246979C2 (ru) | 2005-02-27 |
| DE69830505D1 (de) | 2005-07-14 |
| EP1019174A1 (en) | 2000-07-19 |
| CA2304284A1 (en) | 1999-04-08 |
| CN1272803A (zh) | 2000-11-08 |
| JP2003522300A (ja) | 2003-07-22 |
| PL339655A1 (en) | 2001-01-02 |
| AU6134898A (en) | 1999-04-23 |
| CZ20001180A3 (cs) | 2000-09-13 |
| BR9812593A (pt) | 2000-08-01 |
| US6068799A (en) | 2000-05-30 |
| CN1154530C (zh) | 2004-06-23 |
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